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KARAKTERISASI PRODUKSI DAN KUALITAS MINYAK NILAM HASIL KULTUR IN VITRO PADA BUDIDAYA TANAMAN SELA KAKAO DAN KELAPA Abdul Kadir *1; Dahlia *2; Darmawan *3
CROP AGRO, Scientific Journal of Agronomy Vol 4 No 1 (2011): Jurnal Crop Agro pertanian
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

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ABSTRAK Pemanfaatan tanaman nilam hasil perbanyakan kultur jaringan yang toleran terhadap naungan merupakan salah satu alternatif dalam upaya memanfaatkan areal pertanaman di bawah tegakan, khususnya pada areal perkebunan tanaman kakao dan kelapa. Penelitian ini bertujuan untuk mengetahui produksi dan kualitas nilam hasil kultur in vitro yang dibudidayakan sebagai tanaman sela kakao dan kelapa. Bahan tanaman yang digunakan adalah somaklon yang diperoleh dari hasil seleksi in vitro dan iradiasi sinar gamma yaitu somaklon TT75, TT1020-B11, TT0020-L2, TT0515-M3 dan tanaman induk sebabagai tanaman kontrol. Penelitian dilaksanakan di kebun kakao rakyat Polman, Sulawesi Barat dan analisis kadar minyak dan patchouly alcohol (PA) dilakukan di Laboratorium unit penyulingan minyak atsiri Balai Penelitian Tanaman Obat dan Aromatik (BALITRO) Bogor. Hasil penelitian menunjukkan bahwa somaklon tanaman nilam hasil kultur jaringan mempunyai kadar minyak dan PA lebih tingggi dibandingkan dengan tanaman kontrol. Somaklon TT1020-B11 dan TT0020-L2 mempunyai kadar minyak dan PA lebih stabil pada kondisi iklim mikro di bawah tegakan, sehingga dapat dikembangkan sebagai tanaman sela di bawah tegakan. ABSTRACT Utilization of patchouli plant generated from tissue culture propagation that tolerant to shading is one of the effort to useful of planting area under the standing plants, especially on cocoa and coconut plantation. This research aimed to study patchouli oil quality and production generated in vitro culture on cocoa and coconut alley cropping system. The plant material used was somaclones obtained from in vitro selection and Gamma irradiation. Somaclones were TT75, TT1020-B11,-L2 TT0020, TT0515-M3 and plant control (plant without in vitro selection and irradiation). The experiment was conducted in the People's cocoa plantation Polman, West Sulawesi. Analysis of oil content and Patchouly Alcohol (PA) were conducted at the Laboratory of essential oil distillation unit of Research Institute for Medicinal and Aromatic Plants (BALITRO), Bogor. The experiement results showed that patchouli somaclones resulted of in vitro selection had higher oil and PA content than control plant. Somaclones TT1020 and TT0020-B11-L2 had oil and PA content more stable in microclimate conditions under alley cropping system.

PEMBENTUKAN VARIETAS UNGGUL JAGUNG TAHAN KERING DENGAN HASIL, BERANGKASAN SEGAR TINGGI, UMUR GENJAH (TAHUN I: HIBRIDISASI DAN SELEKSI MASSA SECARA INDEPENDENT CULLING LEVEL) Sudika .; Idris .; Erna Listiana
CROP AGRO, Scientific Journal of Agronomy Vol 4 No 1 (2011): Jurnal Crop Agro pertanian
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

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ABSTRAK Tujuan penelitian yaitu untuk mendapatkan populasi dasar dari hasil persilangan tiga varietas unggul jagung komposit dengan populasi C2.1 dan mendapatkan populasi hasil seleksi siklus pertama, yaitu P1.1 dan P1.2. Pembentukan populasi dasar dengan persilangan antara varietas unggul bersari bebas (Gumarang, Lamuru, dan Sukmaraga) dengan populasi C2.1 secara resiprok. Perbaikan daya hasil, berangkasan segar dan umur panen menggunakan metode seleksi massa secara independent culling level selama satu siklus. Pengurangan efek lingkungan menggunakan metode grid system. Hasil penelitian menunjukkan, bahwa keberhasilan persilangan sebesar 95,43 % dan diperoleh benih hasil persilangan GMC2 sebanyak 6,7 kg; LMC2, 7,1 kg dan SRC2 sebanyak 7,6 kg dan ketiganya dibulk sebagai populasi dasar. Seleksi massa siklus pertama secara independent culling level telah dilakukan dan diperoleh benih P1.1 sebanyak 5,178 kg dan P1.2 sebanyak 4,964 kg. Seleksi massa siklus berikutnya perlu dilanjutkan guna meningkatkan rerata ketiga sifat tersebut. ABSTRACT This research aimed to obtain basic population from hybridization of three high yielding varieties of composite maize variety on C2.1 population; to obtain population of the first cycle selection, P1.1 and P1.2. Formation of basic population was done by reciprocal cross between open pollinated varieties (Gumarang, Lamuru and Sukmaraga) and C2.1 population. Improvement of yields, fresh biomass and harvest age used mass selection method by Independent culling level for one cycle. Decreased influence of environmental used grid system method. The result of this research, that successful of hybridization was 95.43 % and produced 6.7 kg of GMC2 hybrid seeds, 7.1 kg of LMC2 and 7.6 kg of SRC2 and all of them were bulked as a based population. First cycle of mass selection by independent culling level has been done and produced 5.178 kg P1.1 seeds and 4.964 kg of P1.2 seeds. Mass selection for second and thirth cycles were done to increase of population means of that traits.

KARAKTER DAN KANDUNGAN MINYAK BIJI JARAK PAGAR (Jatropha curcas L.) GENOTIPE NUSA TENGGARA BARAT Bambang B. Santoso*1; Bambang S. Purwoko*2
CROP AGRO, Scientific Journal of Agronomy Vol 4 No 1 (2011): Jurnal Crop Agro pertanian
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

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ABSTRAK Jarak pagar (Jatropha curcas L.) adalah tanaman sumber alternatif bahan bakar minyak yang produksi utamanya berupa biji dan pada sisi agronomi, biji sebagai benih merupakan awal pertumbuhan suatu tanaman, maka karakter biji jarak pagar perlu diketahui. Penelitian lapang ini bertujuan mengetahui karakter fisik, biokimia, dan viabilitas biji jarak pagar beberapa ekotipe Nusa Tenggara Barat. Hasil penelitian menunjukkan bahwa terdapat perbedaan karakter fisik dan biokimia biji jarak pagar beberapa ekotipe Nusa Tenggara Barat. Semakin kering kondisi wilayah asal ekotipe semakin tinggi kandungan minyak biji, namun demikian kandungan minyak biji tersebut dapat ditingkatkan melalui kegiatan budidaya tanaman. ABSTRACT Physic nut (Jatropha curcas L.) is alternative resource of fuel plant that the main product containing inside seed and on the other side, seed as material for propagation is initial for plant growth, therefore seed character should be better known. The purpose of this field experiment was to know the physical, biochemical characters and seed viability of several ecotype of West Nusa Tenggara physic nut. The result indicated that there were differences of the physical and biochemical character of those physic nut seed. Drier the condition of ecotype region higher seed oil content and those of oil content could be improved through the plant cultivation activity.

EFFECTIVENESS OF CHICKEN MANURE AND ARTHROBOTRYS DACTYLOIDES ON THE SUPPRESSION OF MELOYDOGYNE JAVANICA Sudirman .
CROP AGRO, Scientific Journal of Agronomy Vol 4 No 1 (2011): Jurnal Crop Agro pertanian
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

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ABSTRACT The suppression of Meloidogyne javanica with the application of kaolin alginate formulated Arthrobotrys dactyloides and chicken manure was investigated. The aims of the study were to know the effects of chicken manure on the growth, ring production, trapping activity of A. dactyloides, and suppression of M. javanica, as well as plant growth. A series of experiments consisted of slide test, soil microcosms, and pot tests were conducted with six dosages of chicken manure; 0.25%, 0.50%, 0.75%, 1.00%, 1,25%, and 1,50% (w/w) with five replicates. Treatment without chicken manure was provided as a control. All experiments were conducted with completely randomized design. The data were analyzed with analysis of variance, and means of each treatment were separated using a honestly significant difference test at 5% level. Results of the study showed that chicken manure did not have significant effect on the growth, ring production, and trapping activity of A. dactyloides, a fungus that effectively reduced number of nematodes entering roots of tomato seedlings. However, chicken manure significantly reduced number of M. javanica penetrating roots, hampered M. javanica development, and improved plant growth. ABSTRAK Penekanan M. javanica dengan aplikasi A. dactyloides dalam formulasi kaolin alginate dan pupuk kotoran ayam telah diteliti. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh pupuk kotoran ayam terhadap pertumbuhan, pembentukan cincin perangkap, aktifitas penjeratan A. dactyloides, dan penekanan M. javanica, serta pertumbuhan tanaman tomat. Serangkaian percobaan yang terdiri dari “slide test”, “soil microcosms”, dan percobaan pot telah dilakukan dengan enam dosis pupuk kotoran ayam; 0.25%, 0.50%, 0.75%, 1.00%, 1,25%, dan 1,50% (b/b) dengan lima ulangan. Perlakuan tanpa pupuk disiapkan sebagai control. Semua percobaan dilaksanakan dengan rancangan acak lengkap. Data dianalisa dengan analisis keragaman dan dilanjutkan dengan uji beda nyata jujur pada taraf nyata 5%. Hasil penelitian menunjukkan bahwa pupuk kotoran ayam tidak berpengaruh nyata terhadap pertumbuhan, pembentukan perangkap, dan penjeratan M. javanica oleh A. dactyloides, jamur yang secara efektif menekan jumlah M. javanica yang penetrasi ke dalam akar tanaman tomat.Tetapi, pupuk kotoran ayam secara nyata mengurangi jumlah M. javanica yang penetrasi akar, menekan perkembangan nematoda, dan meningkatkan pertumbuhan tanaman.

PEMBENTUKAN VARIETAS UNGGUL JAGUNG TAHAN KERING DENGAN HASIL, BERANGKASAN SEGAR TINGGI, UMUR GENJAH (TAHUN I: HIBRIDISASI DAN SELEKSI MASSA SECARA INDEPENDENT CULLING LEVEL) ., Sudika; ,, Idris; Listiana, Erna
CROP AGRO, Scientific Journal of Agronomy Vol 4 No 1 (2011): Jurnal Crop Agro pertanian
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

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ABSTRAK Tujuan penelitian yaitu untuk mendapatkan populasi dasar dari hasil persilangan tiga varietas unggul jagung komposit dengan populasi C2.1 dan mendapatkan populasi hasil seleksi siklus pertama, yaitu P1.1 dan P1.2. Pembentukan populasi dasar dengan persilangan antara varietas unggul bersari bebas (Gumarang, Lamuru, dan Sukmaraga) dengan populasi C2.1 secara resiprok. Perbaikan daya hasil, berangkasan segar dan umur panen menggunakan metode seleksi massa secara independent culling level selama satu siklus. Pengurangan efek lingkungan menggunakan metode grid system. Hasil penelitian menunjukkan, bahwa keberhasilan persilangan sebesar 95,43 % dan diperoleh benih hasil persilangan GMC2 sebanyak 6,7 kg; LMC2, 7,1 kg dan SRC2 sebanyak 7,6 kg dan ketiganya dibulk sebagai populasi dasar. Seleksi massa siklus pertama secara independent culling level telah dilakukan dan diperoleh benih P1.1 sebanyak 5,178 kg dan P1.2 sebanyak 4,964 kg. Seleksi massa siklus berikutnya perlu dilanjutkan guna meningkatkan rerata ketiga sifat tersebut. ABSTRACT This research aimed to obtain basic population from hybridization of three high yielding varieties of composite maize variety on C2.1 population; to obtain population of the first cycle selection, P1.1 and P1.2. Formation of basic population was done by reciprocal cross between open pollinated varieties (Gumarang, Lamuru and Sukmaraga) and C2.1 population. Improvement of yields, fresh biomass and harvest age used mass selection method by Independent culling level for one cycle. Decreased influence of environmental used grid system method. The result of this research, that successful of hybridization was 95.43 % and produced 6.7 kg of GMC2 hybrid seeds, 7.1 kg of LMC2 and 7.6 kg of SRC2 and all of them were bulked as a based population. First cycle of mass selection by independent culling level has been done and produced 5.178 kg P1.1 seeds and 4.964 kg of P1.2 seeds. Mass selection for second and thirth cycles were done to increase of population means of that traits.

KETAHANAN BEBERAPA GALUR KACANG TANAH HASIL KULTUR IN VITRO TERHADAP PENYAKIT LAYU CENDAWAN Fusarium sp Sumarjan .; A. Farid Hemon
CROP AGRO, Scientific Journal of Agronomy Vol 4 No 1 (2011): Jurnal Crop Agro pertanian
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

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ABSTRAK Penelitian ini bertujuan untuk mengetahui ketahanan beberapa galur kacang tanah hasil kultur in vitro terhadap penyakit layu Fusarium sp. Seleksi in vitro diawali dengan menginduksi embrio somatik (ES) dan variasi somaklonal kacang tanah cv. Lokal Bima. Seleksi in vitro untuk ketahanan terhadap penyakit layu fusarium dilakukan pada populasi ES dengan media selektif yang mengandung filtrat kultur Fusarium sp. Setelah dilakukan seleksi in vitro, diperoleh populasi ES yang insensitif terhadap media filtrat kultur. Embrio somatik insensitif ini dikecambahkan dan menghasilkan planlet. Planlet-palnlet ini ditanam untuk memproduksi tanaman generasi R1 dan R2. Tanaman generasi R2 inilah yang akan dievaluasi ketahanannya terhadap penyakit layu cendawan Fusarium sp. Hasil penelitian menunjukkan bahwa kultur in vitro telah mampu meningkatkan ketahanan tanaman kacang tanah cv Lokal Bima dari rentan menjadi agak resisten terhadap penyakit layu cendawan Fusarium sp. Galur GFK 10 menunjukkan agak resisten terhadap infeksi cendawan Fusarium sp dan menghasilkan jumlah polong kering terbanyak 13.5 polong per tanaman dan polong kering terberat 786.5 g/1.1 m2. ABSTRACT This research aimed to investigating resistance of peanut cultivars resulted in vitro culture to fusarium infection. The experiment was inisiated with induction of somatic embryos (SE) and somaclonal variation from peanut cv. Local Bima in MS medium containing Picloram. Medium of MS that added culture filtrate 30% was used as selective agent for resistance to fusarium. After in vitro selection will be gotten insensitive SEs population on culture filtrate medium, and insensitive SEs will be germinated to produce plantlets. Experiment had been done to produced R1 and R2 plant generationt. R2 plants generation had been evaluated resistance level of fusarium infection in Glass House and in farmer field. Result of the experiment showed that in vitro culture had increased peanut cv. Local Bima resistance from susceptible become moderate resistant to Fusarium infection. Peanut line GFK 10 showed moderate resisntant to Fusarium infection with more dry pod number 13.5 pod per plant and more dry pod weight 786.5 g/1.1 m2.

KAJIAN PERANAN EVAPORATIVE PAD TERHADAP IKLIM MIKRO DAN BUDIDAYA JAMUR KUPING HITAM (Auricularia auricula) Ika Nurani Dewi; Sumarjan 2
CROP AGRO, Scientific Journal of Agronomy Vol 4 No 1 (2011): Jurnal Crop Agro pertanian
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

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ABSTRAK Budidaya jamur kuping hitam (Auricularia auricula) pada musim kemarau tidak memberikan produksi yang maksimal. Suhu yang tinggi dan kelembaban udara yang rendah dapat menghambat pertumbuhan jamur kuping hitam. Untuk memberikan kondisi lingkungan yang cocok untuk pertumbuhan jamur kuping dapat dilakukan dengan penggunaan evaporative pad. Untuk itu, penelitian ini bertujuan untuk mempelajari peranan evaporative pad terhadap perubahan iklim mikro di dalam kumbung jamur kuping hitam. Penelitian ini menggunakan sabut kelapa sebagai bahan evaporator. Adapun perlakuan yang telah diuji adalah bangunan kontrol atau kumbung tanpa evaporative pad, bangunan dengan satu evaporative pad, dan bangunan kumbung dengan dua evaporative pad. Hasil penelitian menunjukkan bahwa dengan 1 evaporative pad dalam kumbung menghasilkan kondisi yang paling baik bagi pertumbuhan jamur. Perlakuan tersebut juga menghasilkan intensitas radiasi matahari 17,69 lux, suhu udara 27,25 oC, kelembaban udara 91,03 %, suhu media 28,22 oC, hasil produksi berat basah jamur kuping hitam 24,06 kg dan diameter jamur kuping 15,14 cm. ABSTRACT Auricularia auricula cultivation in summer season can not increase yield production. High temperature and low relative humidity could inhibite Auricularia auricula growth. To get favorable environment to Auricularia auricula growth can be done with using evaporative pad. This research was done to study the effect of evaporative pad to microclimate condition for Auricularia auricula cultivation. This research used coconut fiber as evaporative pad. The treatments were cultivation building of Auricularia auricula without evaporative pad, cultivation building of Auricularia auricula with one unit evaporative pad, and cultivation building of Auricularia auricula with two units evaporative pad. The results showed that one unit evaporative pad in cultivation building of Auricularia auricula generated the best growth of Auricularia auricula. The treatment showed also that solar radiation intensity 17.69 lx, temperature was 27.25 0C, relative humadity was 91.03 %, the temperature of media was 28.22 0C, fresh-weight of Auricularia auricula was 24.06 kg, and diameter of Auricularia auricula was 15.14 cm.

PENGARUH KOMPOS KIRINYU (Chromolaena odorata) DAN JAMUR MIKORIZA PADA PERTUMBUHAN BIBIT JARAK PAGAR (Jatropa curcas L.) DI LAHAN KERING LOMBOK Zaenal Arifin; Ni Wayan Dwiani Dulur; Bustan .
CROP AGRO, Scientific Journal of Agronomy Vol 4 No 1 (2011): Jurnal Crop Agro pertanian
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

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ABSTRAK Penelitian ini bertujuan untuk mengetahui pengaruh kompos Kirinyu dan jamur Mikoriza Arbuscular Versicular (MAV) terhadap pertumbuhan bibit Jarak Pagar di lahan kering Lombok. Percobaan dilakukan di rumah kaca dan di tata dengan pola Rancangan Acak Lengkap yang terdiri dari 10 perlakuan kombinasi antara pemberian inokulasi MAV (tanpa inokulasi MAV dan inokulasi MAV (30 g/pot) dan pemberian kompos Kirinyu (0, 10, 20, 30 dan 40 g/pot). Hasil penelitian menunjukkan bahwa pemberian kompos Kirinyu dan inokulasi MAV berpengaruh terhadap pertumbuhan bibit Jarak Pagar di lahan kering Lombok. Pemberian Inokulasi MAV 30 g/pot + kompos Kirinyu 40 g/pot memberikan tertinggi untuk tinggi tanaman 27,37 cm, berat berangkasan kering bagian atas tanaman 9,79 g, serapan nitrogen 356 mg/tanaman dan serapan fosfor 20,21 mg/tanaman. Sedangkan jumlah persentase kolonisasi akar tertinggi yaitu 83,23% di temukan pada pemberian Inokulasi MAV 30 g/pot + kompos Kirinyu 20 g/pot. ABSTRACT This research was aimed to identify the effect of Kirinyu compost and Micorrhizal Arbuscular Versicular (MAV) to growth of Physic Nut seedlings on Lombok dryland. The experiment was conducted at the green house specifically subjected to apply Completely Randomized Design along with 10 treatment combination between inoculation of MAV (without inoculation of MAV and inoculation of MAV 30 g/pot) and compost of Kirinyu (0, 10, 20, 30 dan 40 g/pot). Result of this experiment showed that application of Kirinyu compost and inoculation of MAV significantly affected on seedling growth of Physic Nut on Lombok dryland. The treatment of MAV inoculation 30 g/pot + Kirinyu compost 40 g/pot showed highest for high of plant 27,37 cm , dry weight of above-ground plant part 9,79 g, nitrogen sorption 356 mg/plant and fosfor sorption 20,21 mg/plant . While the highest infection percentage was found on treatment of MAV inoculation 30 g/pot + Kirinyu compost 20 g/pot, with infection percentage of 83,23%.

HASIL JAGUNG PADA BERBAGAI FREKUENSI PEMBERIAN KALIUM DI VERTISOL LOMBOK YANG DIBERI PUPUK KANDANG SAPI V.F. Aris Budianto
CROP AGRO, Scientific Journal of Agronomy Vol 4 No 1 (2011): Jurnal Crop Agro pertanian
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

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ABSTRAK Penelitian ini diharapkan dapat mengetahui apakah pupuk kandang dapat meningkatkan produksi jagung di vertisol Lombok, dan bagaimana aplikasi kalium yang tepat pada tanah tersebut.Percobaan pot faktorial dengan Rancangan Acak Lengkap, dua faktor : Faktor pupuk kandang (Tanpa pupuk kandang-P0 dan 20 ton pupuk kandang per hektar P1); faktor aplikasi kalium (aplikasi pupuk kalium dengan dosis 150 kg/ha K setara dengan 1,55 g/pot, diaplikaskan sebagai pupuk dasar pada saat penanaman-K1; aplikasi pupuk kalium sebanyak 2 kali yaitu ½ dosis diaplikasikan sebagi pupuk dasar dan ½ dari dosis pada saat tanaman berumur 14 HST-K2; aplikasi pupuk kalium sebanyak 3 kali yaitu 1/3 dosis diaplikasikan sebagai pupuk dasar, 1/3 dosis diaplikasikan saat tanaman berumur 14 HST dan 1/3 dosis diaplikasikan pada saat tanaman berumur 28 HST-K3). Ulangan sebanyak tiga kali. Variabel yang diamati: tinggi tanaman, jumlah daun, luas daun, diameter batang, diameter tongkol, jumlah baris pertongkol, panjang tongkol, bobot tongkol pertanaman, bobot biji, kering bobot 100 butir biji, bobot berangkasan kering tanaman, indeks panen. Data dianalisis dengan kontras orthogonal pada taraf nyata 5%.Pemberian pupuk kandang dengan mengabaikan aplikasi K, meningkatkan beberapa variabel hasil tanaman jagung (diameter tongkol, jumlah baris/ tongkol, bobot tongkol dan bobot biji kering /tanaman). Pemberian pupuk kandang pada tanaman yang diaplikasi K satu kali, meningkatkan variabel hasil tanaman jagung lebih baik daripada yang diaplikasi lebih dari sekali.Aplikasi kalium satu kali ataupun lebih, pada tanaman yang diberi pupuk kandang,tidak dapat meningkatkan hasil tanaman jagung, sebaliknya pada yang tidak dipuk kandang hasil tanaman jagung meningkat. ABSTRACT The aims of this experiment were to examine whether the application of manure can increase the yield of maize in Lombok vertisol and to know how to apply Potassium (K) in that soil properly. For these aims, a set of experiment was carried out and it was arranged according to Completely Randomized Design (CRD) in two factors, manure and potassium fertilizers. All treatment combinations were in three replications. Manure fertilizer treatments as follows: no manure (P0) and 20 tons/ha (P1). Dosage of potassium fertilizer treatments were the same but the applications were in three different times, as follows: 150 kg/ha (K1) equivalent to 1,55 g/pot (P) as basic fertilizer applied once at sowing date, each 55 kg/ha (K2) equivalent to 0,77 g/pot, applied at sowing date and 14 days after sowing (das) and each 50 kg/ha (K3) equivalent to 0,51 g/pot, applied at sowing date, 14 das and 28 das. Variables observed were plant height, leaf number, leaf area, stem diameter, diameter and length of ear/plant, ear weight and dry grains yield/plant, number of grain lines/ear, dry weight of 100 grains, plant dry weight and harvest index. Data were analyazed using Orthogonal Contrast ANOVA at 5% level of significance. Resuls showed that application of manure increase ear diameter, number of grain lines/ear, ear weight and length, and dry grains weight/plant. Application of potassium at sowing date and manure increased the performance of corn yield compared with other potassium applications. However, application of potassium only in three different times (without manure) gave higher corn yield than those with all different potassium applications plus manure.

POTENSI JAMUR FUSARIUM SP. SEBAGAI AGEN PENGENDALI HAYATI GULMA ECENG GONDOK (Eichhornia crassipes) Mohamad Taufik Fauzi; Murdan .
CROP AGRO, Scientific Journal of Agronomy Vol 4 No 1 (2011): Jurnal Crop Agro pertanian
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

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ABSTRAK Penelitian yang bertujuan untuk menguji potensi jamur Fusarium sp. sebagai agen pengendali hayati gulme eceng gondok telah dilakukan di rumah plastik Fakultas Pertanian Universitas Mataram, Percobaan faktorial dirancang dengan Rancangan Acak Lengkap (RAK) yang terdiri dari dua faktor yaitu lama kebasahan dan waktu aplikasi. Perlakuan lama kebasahan terdiri dari 0, 3, 6, 9, atau 12 jam dan aplikasi dilaksanakan pada pagi atau sore hari. Hasil penelitian menunjukkan bahwa penyakit yang ditimbulkan oleh Fusarium sp. pada eceng gondok lebih parah dan berkembang lebih cepat ketika eceng gondok dipaparkan pada suhu yang lebih tinggi segera setelah inokulasi, dan tidak tergantung pada lama kebasahan ketika diaplikasikan pada pagi hari. Jamur ini tidak dapat menginfeksi beberapa tanaman budidayam sehingga aman digunakan sebagai agen pengendali hayati gulma eceng gondok. ABSTRACT A research aimed at investigating the potency of a fungal species (Fusarium sp.) as a biological control agent of water hyacinth had been conducted in a glasshouse of Faculty of Agriculture the University of Mataram. These factorial experiments were designed according Randomized Completely Design (CRD) and consisted of wetness duration and time of application. Wetness duration treatments consisted of 0, 3, 6, 9, or 12 hours applied either in the morning or in the afternoon. The results showed that the disease produced by Fusarium sp. on water hyacinth was severer and progressed faster when exposed to higher temperature soon after inoculation, and was not depended on wetness duration when applied in the morning. This fungus could not infect several crop plants; thereby it is safe to be applied as a biological control agent of water hyacinth.

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Contact Name Dr. Ir. Lestari Ujianto, M.Sc.

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Location Kota mataram, Nusa tenggara barat INDONESIA

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Dr. Ir. Lestari Ujianto, M.Sc.

Contact Email
ujianto@unram.ac.id

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Journal Mail Official
cropagro@unram.ac.id

Editorial Address
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Location
Kota mataram,

Nusa tenggara barat

INDONESIA